AddOn 676331-B21-AM 4GB DDR3-1600MHz Registered ECC RDIMM - Single Rank CL11240-pin 1.5V Server Memory
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Product Features
Product Overview
The AddOn 676331-B21-AM is a 4GB DDR3-1600MHz Registered ECC RDIMM designed for server environments requiring reliable, error-correcting memory. This module delivers 1600 MHz speed with CL11 latency, providing balanced performance for data-intensive server workloads. Built with registered signal processing and ECC error checking, it ensures data integrity and stability in mission-critical applications.
Compatible with specific HP ProLiant Gen7 server models, this memory module follows the DDR3-1600/PC3-12800 standard and operates at 1.5V. The single-rank design with 240-pin DIMM form factor makes it a direct replacement or upgrade option for supported systems. With a lifetime warranty, it offers long-term reliability for server memory configurations.
Relevant factors for this section include Memory Size, Memory Technology, Memory Voltage, Number of Pins. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Technical Overview
This server memory module uses DDR3 SDRAM technology running at 1600 MHz, which corresponds to the PC3-12800 memory standard. The registered design buffers address and control signals, reducing electrical load on the memory controller and enabling support for higher module densities in multi-DIMM configurations. ECC functionality detects and corrects single-bit memory errors, preventing data corruption and system crashes.
The module operates at 1.5V with CL11 latency timing, balancing speed with responsiveness for server applications. The 240-pin DIMM form factor measures 1.50" wide and 0.30" thick, with an approximate weight of 12 ounces. These physical specifications ensure proper fit in standard server memory slots while maintaining compatibility with cooling solutions and chassis layouts.
Relevant factors for this section include Memory Size, Memory Technology, Memory Voltage, Number of Pins. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
This memory module combines several features that make it particularly suitable for server deployment. The registered ECC design provides both signal stability and error correction, essential for maintaining system uptime and data accuracy in 24/7 operations. The 1600 MHz speed offers sufficient bandwidth for server applications while maintaining compatibility with DDR3-based server platforms.
Data Integrity Protection
ECC error checking continuously monitors memory operations, detecting and correcting single-bit errors to prevent data corruption and system instability.
- Automatic error correction
- Prevents silent data corruption
- Enhances system reliability
Server-Optimized Design
Registered signal processing reduces electrical load on memory controllers, enabling stable operation with multiple DIMMs installed in server configurations.
- Supports high-density memory configurations
- Improves signal integrity
- Reduces controller load
Deployment / Use Cases
This memory module is specifically designed for server environments where reliability and data integrity are paramount. It serves as replacement memory for HP ProLiant Gen7 servers experiencing memory failures or as upgrade memory to expand existing configurations. The compatibility with specific server models ensures proper operation within supported systems.
Typical deployment scenarios include database servers, file servers, virtualization hosts, and application servers where ECC protection and registered design provide necessary stability. The module supports server workloads that benefit from 1600 MHz memory speed while maintaining compatibility with DDR3 server platforms. System administrators can use this memory for maintenance, repair, or capacity expansion in compatible HP server environments.
Physical Profile
The module uses a standard 240-pin DIMM form factor measuring 1.50" (38.10 mm) in width and 0.30" (7.62 mm) in thickness. This compact design fits standard server memory slots while maintaining proper clearance for airflow and adjacent components. The approximate weight of 12 ounces (340.19 g) reflects the robust construction typical of server-grade memory modules.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 1.50" (38.10 mm), 12 oz (340.19 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 1.50" (38.10 mm)
- Weight
- 12 oz (340.19 g)
Highlights
- 4GB DDR3-1600MHz server memory module
- Registered ECC design for data integrity and stability
- Single-rank configuration with CL11 latency
- 240-pin DIMM form factor for server compatibility
- 1.5V operating voltage for power efficiency
- Compatible with HP ProLiant Gen7 server models
- DDR3-1600/PC3-12800 memory standard
- Lifetime warranty for long-term reliability
Specifications
| Specifications | |
|---|---|
| Manufacturer | AddOn |
| Manufacturer Part Number | 676331-B21-AM |
| Brand Name | AddOn |
| Product Name | 4GB DDR3 SDRAM Memory Module |
| Packaged Quantity | 1 |
| Product Type | RAM Module |
| Technical Information | |
| Memory Size | 4 GB |
| Memory Technology | DDR3 SDRAM |
| Memory Voltage | 1.50 V |
| Number of Modules | 1 x 4GB |
| Memory Speed | 1600 MHz |
| Memory Standard | DDR3-1600/PC3-12800 |
| Memory Rank | Single-rank |
| Error Checking | ECC |
| Signal Processing | Registered |
| CAS Latency | CL11 |
| Device Supported | Server |
| Physical Characteristics | |
| Number of Pins | 240-pin |
| Form Factor | DIMM |
| Thickness | 0.30" (7.62 mm) |
| Width | 1.50" (38.10 mm) |
| Weight (Approximate) | 12 oz (340.19 g) |
| Miscellaneous | |
| Compatibility | HP Servers: ProLiant BL685c Gen7 (G7) - (518878-B21) ProLiant DL165 G7 Proliant DL585 Gen7 (G7) - (601362-001) |
| Country of Origin | China |
| TAA Compliant | No |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What is the capacity and speed of this memory module?
This AddOn memory module provides 4GB of capacity running at 1600 MHz speed. It follows the DDR3-1600/PC3-12800 memory standard, offering sufficient bandwidth for server applications while maintaining compatibility with DDR3 server platforms. The 1600 MHz speed balances performance with power efficiency for server workloads.
What does Registered ECC mean for server memory?
Registered ECC combines two important server memory features. The registered design buffers address and control signals, reducing electrical load on the memory controller and enabling stable operation with multiple DIMMs. ECC (Error-Correcting Code) detects and corrects single-bit memory errors automatically, preventing data corruption and system crashes in mission-critical server environments.
Which servers are compatible with this memory module?
This module is compatible with specific HP ProLiant Gen7 server models including the BL685c Gen7 (G7), DL165 G7, and DL585 Gen7 (G7). It serves as replacement or upgrade memory for these systems. Always verify your specific server model and existing memory configuration before installation to ensure compatibility.
What is the difference between single-rank and dual-rank memory?
Single-rank memory has one set of memory chips accessed per clock cycle, while dual-rank has two sets. This single-rank module provides simpler electrical loading and may offer slightly better performance in some configurations. The rank designation affects how the memory controller accesses the module and can impact compatibility with certain server memory configurations.
What is the CAS latency and why does it matter?
This module has CL11 CAS latency, which means it takes 11 clock cycles between receiving a column address strobe command and having data available. Lower latency numbers typically indicate faster response times, though actual performance depends on the overall memory subsystem. CL11 represents a balanced latency for DDR3-1600 server memory, providing responsive performance for server applications.
What warranty comes with this server memory?
This AddOn memory module comes with a lifetime warranty, providing long-term protection for your server memory investment. The warranty covers defects in materials and workmanship for the life of the product, offering peace of mind for server deployments where reliability and uptime are critical considerations.
| Qty | Price | Available |
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